var adbanner = new Object;
adbanner.id = '21';
adbanner.BASE_DIR_URL = 'http://www.52campus.com/cgi/ad';
adbanner.banners = new Array();
adbanner.banners.push('6	<a href="http://www.52campus.com/cgi/ad/redirect.cgi?id=21&amp;bid=6" title="【PR】最新のTOEICテストの問題形式に完全対応" target="_blank"><img src="http://www.52campus.com/cgi/ad/pub/21_6.gif" alt="【PR】最新のTOEICテストの問題形式に完全対応" border="0" /></a>');adbanner.banners.push('4	<a href="http://www.52campus.com/cgi/ad/redirect.cgi?id=21&amp;bid=4" title="【学校名から物件を探そう】" target="_blank">【学校名から物件を探そう】</a>');
/* ==================================================================
■メイン
=====================================================================*/
adbanner.main = function() {
	var random_index = Math.floor(Math.random() * adbanner.banners.length);
	var ary = adbanner.banners[random_index].split("\t");
	var bid = ary[0];
	var tag = ary[1];
	var accurl = adbanner.BASE_DIR_URL + "/accjs.cgi?id=" + adbanner.id + "&bid=" + bid;
	document.write('<script type="text/javascript" src="' + accurl + '"></script>');
	document.write('<div id="adbanner">'+tag+'</div>');
}
/* ==================================================================
■処理実行
=====================================================================*/
adbanner.main();